

osd/osd_types.h
osd/Watch.h
include/Context.h
common/dout.h
global/global_context.h
  g_ceph_context; 
  g_conf;



common/Cond.h
 include/Context.h

common/Throttle.h
 include/Context.h



static constexpr int dout_subsys 定义了会导致包含的头文件的定义无效
所以需要lsubdout


